The O3 stars

Abstract
A brief review of the 10 known objects in this earliest spectral class is presented. Two new members are included: HD 64568 in NGC 2467 (Puppis OB2), which provides the first example of an O3 V (f-asterisk) spectrum; and Sk -67 deg 22 in the Large Magellanic Cloud, which is intermediate between types O3 (f-asterisk) and WN6-A. In addition, the spectrum of HDE 269810 in the LMC is reclassified as the first of type O3 III (f asterisk). The absolute visual magnitudes of these stars are rediscussed.

This publication has 0 references indexed in Scilit: